Table 2.

Post hoc test of p values across different imaging sites at each time point for different GLCM-based parameters.

	Site a	Site b	GLCM contrast p value	GLCM entropy value	GLCM correlation p value	GLCM energy p value	GLCM homogeneity p value
Pre-surgery	FP	NP	< 0.001***	0.011*	< 0.001***	0.011*	< 0.001***
		ND	< 0.001***	0.011*	< 0.001***	0.011*	< 0.001***
		FD	< 0.001***	< 0.001***	< 0.001***	< 0.001***	< 0.001***
	NP	ND	NA	NA	NA	NA	NA
		FD	< 0.001***	0.006**	< 0.001***	0.454	0.006**
	ND	FD	< 0.001***	0.006**	< 0.001***	0.454	0.006**
1 month	FP	NP	< 0.001***	< 0.001***	0.001**	< 0.001***	< 0.001***
		ND	< 0.001***	0.963	0.003**	0.379	0.805
		FD	< 0.001***	< 0.001***	< 0.001***	0.098	< 0.001***
	NP	ND	0.019*	< 0.001***	0.178	< 0.001***	< 0.001***
		FD	< 0.001***	< 0.001***	< 0.001***	< 0.001***	< 0.001***
	ND	FD	< 0.001***	< 0.001***	0.005**	0.01*	< 0.001***
2 month	FP	NP	0.063	0.015*	0.229	0.001**	0.009**
		ND	0.695	0.938	0.049*	0.414	0.781
		FD	< 0.001***	0.188	< 0.001***	0.897	< 0.001***
	NP	ND	0.143	0.019*	0.4431	0.017*	0.020*
		FD	< 0.001***	< 0.001***	< 0.001***	< 0.001***	< 0.001***
	ND	FD	< 0.001***	0.163	< 0.001***	0.344	< 0.001***

FP: far proximal; NP: near proximal; ND: near distal; FD: far distal. NA since at the pre-surgery time point, the same group was applied for NP and ND groups.

*p < 0.05;**p < 0.01;***p < 0.001.